Member for years but couldnt get in

Hi, ive been a member for many years but have been unable to use the forum, so gave up. Today i again tried the only 3 email addresses ive ever had, but couldn't get in on any of them with my user name as I forgot my password so have just re registered. Can I use my old account rather than this new one and how do I go about doing so? Thankyou.Ps Didn't this rescue forum used to be blue or am I in the wrong dog rescue pages?